Class 1 Exam  >  Class 1 Notes  >  Mathematics for Class 1  >  Worksheet Solutions: Addition and Subtraction Up to 20 - 1

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Q1: Add by counting forward. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 8

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 9

(iii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 4

(iv) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 8

Q2: Add on the given number lines.
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
(iii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans:

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Q3: Add vertically. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 8

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 10

(iii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 9

(iv) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 7

Q4: Fill in the blanks.
(i) 4 + ______ = 5 + 4 = 9 
Ans: 4 + 5 = 5 + 4 = 9

(ii) 8 +  ______ = 1 +  ______ = 9
Ans: 8 +  1 = 1 +  8 = 9

Q5: Add and write the sum.
(i) 0  + 4  = ______
Ans: 0  + 4  = 4

(ii) 6 + 0 = ______
Ans: 6 + 0 = 6

(iii) 7 + 0 = ______
Ans: 7 + 0 = 7

Q6: Add the fruits.
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 10 apples and 6 apples are 16 apples.
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 10 kiwis and 5 kiwis are 15 kiwis.
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Q7: Add to ten. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Q8: Add the following on the number line.
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
(iii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Q9: Add the numbers on petals. Write your answer in the circle. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: = 16

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: = 10

Q10: Find the answer for the following addition situations.
(i) The jewelry shop in a shopping mall has 13 silver bracelets and 4 gold bracelets. How many bracelets are there in all in the shop?
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans: Addition and Subtraction Up to 20 - 1 Class 1 Worksheet MathsThere are 17 bracelets in total in the shop.

(ii) On the Earth’s Day, Nira planted 6 plants and Harit planted 7 plants. Find the total number of plants that both Nira and Harit planted.
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans: Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Together, Nira and Harit planted 13 plants.

Q11: Fill in the circles with the correct number of bees present on each flower. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths 
(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans:

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths 
Q12: Subtract the ones first to find the difference. 
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: 
= Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

17 - 5 =12

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans:

 Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

18 - 2 =16

Q13: Subtract each of the following using the given number lines.

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet MathsAns: 
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Q14: Solve the following subtraction problems.
(a) Ms Prachi is fond of handbags. She owns 14 handbags. 4 of those are of black colour. How many of  them are other than black?
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans: 

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ms. Prachi has 10 handbags that are other than black.

(b) Kanika has a collection of 18 story books. She gave few to her friend. She is left with 5 story books now. How many story books did she give to her friend?
Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans:  

Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Kanika gave 13 story books to her friend.
Q15: Start with the bigger number and count backward to subtract the following.
(i) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: = 3

(ii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths
Ans: = 1

(iii) Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

Ans: = 4

The document Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths is a part of the Class 1 Course Mathematics for Class 1.
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FAQs on Addition and Subtraction Up to 20 - 1 Class 1 Worksheet Maths

1. How can I practice addition and subtraction up to 20?
Ans. To practice addition and subtraction up to 20, you can use various methods such as using number lines, manipulatives like counters or blocks, or practicing with worksheets and online resources specifically designed for this purpose. Consistent practice and repetition will help you improve your skills in these operations.
2. Are there any online resources available for practicing addition and subtraction up to 20?
Ans. Yes, there are numerous online resources available for practicing addition and subtraction up to 20. You can find interactive games, worksheets, and math apps that provide practice problems and activities. Some popular websites include Math Playground, ABCya, and Coolmath Games.
3. What strategies can I use to solve addition and subtraction problems up to 20?
Ans. There are several strategies you can use to solve addition and subtraction problems up to 20. Some common strategies include using number bonds, breaking numbers apart, using a number line, or using mental math techniques such as counting on or counting back. Experiment with different strategies to find the ones that work best for you.
4. How can I help my child improve their addition and subtraction skills up to 20?
Ans. There are several ways you can help your child improve their addition and subtraction skills up to 20. Provide them with opportunities for hands-on practice using manipulatives, play math games together, and use real-life situations to reinforce the concepts. Additionally, encourage them to solve problems mentally and provide praise and positive reinforcement for their efforts.
5. What are some common mistakes to avoid when solving addition and subtraction problems up to 20?
Ans. When solving addition and subtraction problems up to 20, it's important to watch out for common mistakes. Some of these include miscounting or skipping numbers, forgetting to regroup or carry over, or incorrectly applying the operation signs (+/-). Double-checking calculations, using visual aids, and practicing regularly can help minimize these errors.
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